Commercial Drainage & Sewer System Installation & Maintenance

Reliable drainage systems for commercial developments.

Effective drainage and sewer systems are critical for the long-term performance of commercial buildings. We provide design, installation, and ongoing maintenance for stormwater, sewer, and drainage systems, ensuring compliance with council and industry requirements. Our team focuses on delivering robust, efficient solutions that minimise risk and prevent costly blockages or overflows. From new builds to large-scale upgrades, we keep your property’s infrastructure running smoothly.

What our customers say:

Our work

We take pride in every job we complete, delivering quality workmanship and reliable solutions. The photos below showcase some of our recent projects.

Real results from a team committed to doing things right.

FAQs for Drainage & Sewer System Installation & Maintenance

  • We design and install stormwater and sewer systems for new builds and large-scale upgrades.

    This includes mains connections, sump and manhole construction, and full compliance with council standards.

    If you need expert drainage solutions for your site, get in touch with us today.

  • Correct system design and preventative maintenance are key.

    We size systems to handle expected demand, install backflow protection, and provide maintenance programmes that reduce risk of blockages or overflows.

    If you’d like drainage systems that prevent flooding and backups, click here to get in touch now.

  • Yes. CCTV inspections let us identify issues such as collapsed pipes, tree root intrusion, or partial blockages without costly excavation.

    Reports include footage and clear recommendations for action.

    If you’d like to book a CCTV drain inspection, get in touch with us here.

  • Absolutely. We replace or reline damaged systems to bring them up to modern standards.

    We stage work to minimise disruption, which is especially important for tenanted commercial buildings.

    If you’re looking to upgrade old drainage systems, click here to get in touch today.

  • Costs depend on the system scale, depth, and condition of existing infrastructure.

    We provide detailed estimates and compliance records so project managers can present a clear case to stakeholders.

    If you’d like a transparent quote for commercial drainage work, get in touch with us now.

Get In Touch

Get In Touch

At Garcia Plumbing & Gas, we're committed to providing top-quality plumbing and gas fitting services across Wellington, Porirua, and Hutt City.

Whether you're dealing with an emergency leak, planning a kitchen or bathroom renovation, or need maintenance on your gas appliances, our experienced team is here to help.

We look forward to assisting you with prompt, reliable, and professional service.